Methods and apparatuses used for MTC (Machine Type Communication) device data transmission
A technology of data transmission and equipment, applied in the direction of electrical components, wireless communication, etc., can solve the problems of being unsuitable for low-cost MTC equipment, not providing diversity, and not being detailed enough, so as to avoid data collisions, improve coverage enhancement performance, and improve data quality. The effect of transmission efficiency
Active Publication Date: 2017-01-04
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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Problems solved by technology
In addition, MTC equipment can only receive 6 PRBs, so for a 20MHz system, the bandwidth of 20MHz can be divided into 17 MTC sub-bands. provide enough variety
Therefore, the existing PUSCH frequency hopping scheme is not suitable for low-cost MTC equipment
Method used
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[0030]In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims. In addition, while the specification describes steps of a method in a particular order, this does not require or imply that operations must be performed in that particular order, or that all illustrated operations must be performed to achieve desirable results. Rather, the depicted Steps can change the order of exec...
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The present invention relates to a method and apparatus for assisting MTC (Machine Type Communication) devices to carry out data transmission in a base station end, as well as a method and apparatus for carrying out data transmission in MTC (Machine Type Communication) devices. The method for assisting the MTC (Machine Type Communication) devices to carry out data transmission in the base station end includes the following steps that: A, the available frequency bands of the MTC devices are divided, so that a plurality of candidate sub-bands can be determined; B, the sub-band set of the MTC devices is formed; and C, whether MTC devices that need to implement frequency hopping exist is determined, when the MTC devices that need to implement frequency hopping exist, a set offset is allocated to each MTC device which needs to implement frequency hopping, a continuous transmission value is determined for each MTC device that needs to implement frequency hopping, the sub-band set, the set offsets and the continuous transmission values are sent to corresponding MTC devices, data transmission with the MTC devices is carried out, and new sub-bands are selected to replace sub-bands with poor channel quality and / or sub-bands which will be occupied by non-MTC devices according to the channel quality of the sub-bands in the sub-band set and / or the occupation conditions of the sub-bands in the sub-band set.
Description
technical field [0001] The present invention relates to the field of wireless communication, in particular, the present invention relates to a method and device for assisting MTC equipment in implementing data transmission in a base station, and a method and equipment for implementing data transmission in MTC equipment. Background technique [0002] In Rel-13, the MTC (Machine Type Communication) work item has been agreed upon, and further reduction of the complexity at the user end of the MTC device is required. In order to increase the coverage strength of the user end of the MTC device and improve power consumption. The low-cost MTC user end can be equipped with a lower power amplifier, which will cause loss of coverage performance, so it is necessary to increase the signal coverage strength by about 18dB. The most effective coverage enhancement technique is repetition. For an enhancement of 18dB coverage, more than 300 retransmissions need to be performed. This greatl...
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IPC IPC(8): H04W72/04H04W72/08H04W72/54
CPCH04W72/0446H04W72/0453H04W72/541H04W72/542
Inventor 陈宇黄晟峰
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD